The Observatory on Friday morning said that people should take the necessary precautions against flooding with heavy rain continuing to fall, especially those living in Tai Po and Sai Kung Districts.

The weather forecaster issued the Amber Rainstorm Warning Signal again at 2.35am, after cancelling it less than two hours later.

The forecaster said rain was particularly heavy in Tai Po and Sai Kung Districts, with more than 70 millimetres of hourly rainfall fallen or expected to fall, which could cause serious flooding.

The Observatory said people should stay away from shorelines and not engage in water sports.

The forecaster said the Gale or Storm Signal No. 8 is expected to remain in force until at least noon, as Super Typhoon Yagi skirts to the southwest of Hong Kong.